*** Update: Would I buy more of the LR Mega Platinum S - No. I discovered today when you pull the Carto down to fill the IBTank the Slot goes past the O-Ring and it leaked from the bottom. I found out today this is a messy Carto for me so I will burn off my remaining and continue in the future with Punched with Flange ***

Yeah. This does suck, but it's not a big enough deal for me to not buy them. I always fill my tanks while at the sink and can clean things up pretty easily. I also use a tank tool that's long enough to allow me to push the carto out past the other end of the slot, though you have to remember not to fill the tank slap full (leave enough empty volume to account for the carto).

Never used the F16 but AFAIK Boge cartomizers are the same diameter and length as the Smoktech. Boge does measure differently adding 5mm for the threads so a ST 35mm is a Boge 40MM.

We should have all of our out of stock cartomizers back in soon. Smoktech is back at work now after their holiday. We thought we were in good shape for it this year but got hit hard by many new wholesale B&M customers and ran out of a few sizes. We had put in a late order just before the holiday but only part of it was able to ship.

As much as it hurts to be OOS I certainly cannot begrudge anyone a holiday. I just hope that they have had a great time and are ready to get back to work